Beijing Yisiyan Technology Research Center
Telephone010-56645598 13366904824;
Websitehttp://www.bjkaida.cn
Aikon International Limited
Telephone025-58859352 19370895928
Websitehttp://www.aikonchem.com
Shaoyuan Technology (Shanghai) Co., Ltd.
Telephone021-50795510 4000665055
Websitehttp://www.shao-yuan.com
Hebei Yaocheng Pharmaceutical Technology Co. Ltd
Telephone19903117580 19903117510
Websitehttps://www.yaochengph.com
Zibo Hangyu Biotechnology Development Co., Ltd
Telephone+86-0533-2185556 +86-15965530500
Websitehttps://www.chemicalbook.com/manufacturer/hangyu-chemical-25178/